Acquired a digital acquisition of the patient's forearm using the Intel RealSense D415. The arm of the patient' is placed on a support to allow the plaster nurse to position of the wrist at the correct angle to treat the fracture. The limb is temporarily immobilised in a plaster cast by the nurses of the practice. The patient is booked for a subsequent outpatient visit (which will be conducted within 72 hours of digital acquisition of the forearm) for the application of the device under investigation. The production of the device through a Stratasys F370 3D printer owned by the Meyer Children's Hospital IRCCS. The material used is ABS (Acrylonitrile butadiene styrene) supplied by Stratasys and specific to the machine. Placement of the device on the patient by the investigating nurses, after removal of the temporary device. Collection of data on the evaluation of study parameters.

Traditional device placement (antibrachio-metacarpal cast). Radiological check at 7 days after trauma to verify the angle of the stumps fracture angle, followed by radiological check at 14 days if necessary . Removal of the plaster cast 30 days after the trauma, radiological check to verify the formation of bone callus, clinical evaluation and data collection at the end of treatment

Digital acquisition of the patient's forearm using Intel RealSense D415 cameras (CE devices certified according to EN/IEC 60825-1 2007 - Safety of Laser product as Class I Laser Devices, i.e., Non-Hazardous Laser Radiation). The patient's arm is placed on a support to allow the plaster nurse to position the wrist at the correct angle needed to treat the fracture.

Completion of the therapeutic course, i.e. fracture healing without intervention following immobilisation device placement with residual angulation < 20°. Radiographic assessment of the fracture angle at 7 and 30 days after application of the device application;

• Radiographic assessment of fracture healing at 30 days, defined as presence of bone callus on 3 out of 4 fracture margins;
• If at the 7-day assessment the fracture angle appears critical, defined as >15° or an increase >5° from the initial radiograph, the patient will undergo a further radiographic assessment after a further 7 days (i.e. 14 days from the start of treatment).
• Functional recovery of the limb will be investigated with a clinical examination 30 days after removal of the device (60 from the start of treatment), where arc of motion and elective pain and painability to active mobilisation, as per normal clinical practice.

Recording at each assessment time of any adverse events such as: mobilisation of the device, appearance of peripheral deficits, intolerance expressed by the patient towards the device.